We did some [[meetings:​meeting_agenda_and_minutes_for_2015-03-10#​minutes|brainstorming at the March 10th meeting]] about what to do. The following week, Ben knocked together a prototype of a capacitive sensor using a water-filled ping-pong ball, an LED, an Arduino, and various electronic components; his research is ongoing.

We did some [[meetings:​meeting_agenda_and_minutes_for_2015-03-10#​minutes|brainstorming at the March 10th meeting]] about what to do. The following week, Ben knocked together a prototype of a capacitive sensor using a water-filled ping-pong ball, an LED, an Arduino, and various electronic components; his research is ongoing.

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===== Bike Generator =====

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​===== Bike Generator =====

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One idea that was talked about was a bicycle powered generator. Both as supplemental power source to (partially) recharge batterie(s) and fitting in with the "​Sustainability"​ theme of Summer Soltice fest. We have a 24V DC permenant magnet motor that could be run in reverse as a generator. Some research suggests that it needs to be turned at a faster speed than direct drive from a bicycle chain to a sprocket on the motor shaft could drive it. Three approaches I have found on the internet is to add a second level of gearing (shown link to be added if I can find it again). Another approach is to the tire to a roller on a bicycle trainer then use this roller via an attached pulley or cog to drive the motor ..

One idea that was talked about was a bicycle powered generator. Both as supplemental power source to (partially) recharge batterie(s) and fitting in with the "​Sustainability"​ theme of Summer Soltice fest. We have a 24V DC permenant magnet motor that could be run in reverse as a generator. Some research suggests that it needs to be turned at a faster speed than direct drive from a bicycle chain to a sprocket on the motor shaft could drive it. Three approaches I have found on the internet is to add a second level of gearing (shown link to be added if I can find it again). Another approach is to the tire to a roller on a bicycle trainer then use this roller via an attached pulley or cog to drive the motor ..